Engine.



W. L. SHEPARD.

ENGINE.

APPLICANDN FILL@ MN. l2. |916.

Patented Apr. 23, 1918 .UNITED STATES PTENT OFFICE,

, WILBUB, L. sHEPnnn, onwits'r HARTFORD, conync'rxcu'r.

ENGINE Y To all whom t may concern:

Be it known that I WILetm-L. Summen,

)ford and State of Connecticut', have invent-l ed 'a new and Improved Engine, of which" the following is a specification.

, My inventionrelates Vmore especially to "the class of engines morefcommonly known as explosiveorgas engincs, and an object of 1 Y my invention', among others, is to provide on engine in which themaximuln power shall i be obtained Zwith a given expenditure of i 'One-form of engine embodyingmyinvention and in the construction and use of iV i: which the objects herein set out, as Well as fothers,may be attained, is illustrated in the v accompanying drawings, in Which- 2u Figure 1 ris a view vin central 'vertical sec- .tion through an engine embodying my invention,4 the lane of section extending j1`.'len .h wise oft e `crank shaft.

cinsctiom on y i of Figgl. `ia-f :1 ;The`eng1ne forming the subject matter of thislapplicetion embodies the broad idea ex- 4Eenflress'ed' in my copending application iiled $0 arch 25th, 1916, Serial No. 86,698 and clwhich contains claims to the broad idea, a specific arrangement of the mechanism only being claimed herein. In the present case I @have adapted the invention to an arrange-V liment .in which the cylinders, are disposed wshaft. 'It Will benderstcod that l any num- Leiber of` cylinders me e thdevme ccntemp @fe-rotating crank S l -lfyvemodieclin areversedtarran ement of g1g uch partsnwhich the crank sh may be --sltationary and the cylinders mayrevolve. The construction herein shown is such. l'tliat it may be applied for use'in aeroplanes and the-likdthe numeral indicatinga base or i,"ialikfo'as'e with radial arms constituting cylleiders 6 'fan'intake vchamberI "(being `located i l e'orcase endo en ing into each of 'the cylinders; An inta passage 8 `exates' fixed -cylinders -and ''tends along the body of oneof, the cylinders Uffrox'n a carhureter fof any'ordinary conf n structionandfoperatlo `for mixmgmhe Hinds y "ad delivering them for use withm the c I- inders. Brac Speciiicationof Letters Patent.

Application `tiled January 12, 1918. Serial No. 71,778.`

' a citizen of the United States, and a resident of West Hartford, in thercounty of Halt"` 12 has a bearing, theopposite end pf them) -located Within the intake chamber 7.

1g. F2 1s a view in sideelevation, partially plane, denoted by dotted line' i `their opening and closing onqdianetrically oppositey sides of a rcranky be employed, and' While f 'f mders, these levers each including a shaft 41 Y'ft, the ideamay be read- 'wto Whi-choue forked arm is secured and con- 95 ets 10 extend from thesi es' Patented Apr'. 23; 1918.

of two of the cylinders in osition toreceive standards ot any suitable crm `for supporting the'en ine, said sup ort alsocom rising estandar 11 within vv ichthefer shaft shaft being supported in any `suitable manthe crank case `5 and'having suitable bear ings therein, is provided with a crank 18 A piston 14 located within one of the cylindcrs has a pitman 15 pivotally connecting it with the crank 13, said pitman being pivotelly connected to the piston. This `ltmen Vhas radially extending arms 16 dlsposed T0.

aboutthe crank 13, a pitman 17 pivotally connecting each arm with a piston 18510- cated in each of the other cylinders.

l Anf intake valve 19 islocated in an opening'in the head of each piston to control the J5 How of fluid through said opening to the explosion side ofthe iston, these valves being operated by the di erenee in pressure upon oppositeeides of the piston in itf well knovwmanner to `properly regulate the ow ol 20 fluid. Exhaustval'ves 20' secured to valve stems 40 are located in the head of each cylinder Vlso-control thev flow of the fluid after the explosion takes place. These vlves have a movement in a direction'across'the axis of 85 the cylinder, or at substantially right angles to said axis. This is oit s ecial advantage, 1n a construction 1n Whlch the cylinders are caused to rotate, as in such ,case

movements will not be affected by centrifugal force. `Valve o erating levers 21, of bell` crank form, are pivote-ily mounted upon the sides of theY cyl nected witha valvestem to operate it and 4 to which the 'other offset arm is secured and `gear 23 meshing 'with a pinion 42 that meshes with a 'direction inion 24 both 1,0` mounted enst-nelson the si e of the engine ibase or crank case,'r of a.` cylinder,A the pinion'llmeshing with 'a gear' secured to the crank shaft 12. An opening 26 in the base is closed by a cover 2 and serves as a 110` means of access to chambers in the cylinders projecting on opposite sides thereof and and by means of which the parte may be ashavin at one end an exhaust opening to desembled. liver ie exhaust against said' uckets.

An impetus wheel 28 is secured to the 8. An engine including a hollow crank crank shaft 12, this wheel having a recess case providing an intake chamber, cylinders 7o 29 in one face within which the cy inders are radiating from said crank case and disconlccated. A rim 30 forming the boundary of 4nested a,t,their outer ends, a shaft rotatably this recess is provided on its inner surface mounted in seid crank case, pistons located with buckets 31 at the bottom of a groove in in each of the cylinders ang o eratively conthe rim and located to trav Yin close prox. nected with the crank s afl?, an impetus 75 .imity to an exhaust nozzle 32 extend' ons wheel' secured to the crank shaft, and with from the head of each cylinder, each its dperiphery surrounding and inclcsing the having a assage control ed by an 'exhaust en s of the cylinders and havin buckets on valve 20. he arms 38 of the impetus 'wheel its interior, an exhaust hea extending are of considerable width and are diagonally across the end of each cylinder and roject- 80 arranged so that a circulation is created by ing on opposite sides thereof, one en termicausingl air to liow from one side of-the nating in an exhaust nozzle to deliver exwheel to the op ositeside, whichair-is then haust aga'inst said buckets, a valve locatedl passed across t e cylinders and acts as a in said head and with its stem located in the 2o coolin medium. extension opposite said nozzle, and a valve 85 In t e operation of this engine the gases lever projecting through an openin into are admitted to the cylinders and `4are isaid extension and engaging said va ve to nited therein while the valves are close operate it. y The gases thus exert their force upon the 4. An engine including a hollow crank pistons to drive them forward, that ifi, .to case providing an intake chamber, cylinders 90 the opposite end of the cylinder from that radiating from said crank case and disconto which the gases are admitted. Just as nected at their outer ends, said structure besoon as the gases have acted to their utmost ing formed of a single piece of metal and upon the dpistons then the valves V20 are havin a central opening on one side, a

3o o ened an the gases are projected through lian cgi plate closing said opening, acrank 95 t e nozzles 32 on to the impetus wheel,` thus sha extendin into said case and plate, exerting allof the forces remaining after pistons loca in each of the cylinders the `have acted upon the iston. and operatively connected with the crank ile I have shown and) described herein shaft, an impetus wheel secured to the crank a satisfactory arrangement of mechanism shaft and with its eri hery surroundi 100 embodying my ideas, this may be chan ed and inclosing the en s o the cylinders an to a greater or lesser degree and yet be withhavin buckets on its interior, and an exin the spirit and intent of the invention. haust ead arranged to deliver the exhaust claimy from the cylinders against said buckets.

40 1 'An en gine including a hollow crank 5.' An engine including a hollow crank 105 case providing an intake chamber, cylinders case providing an intake chamber with an radiating from said crank case and disconopening thereto, a an'ged plate closing said nected at their outer ends, a shaft rotatably opening and said chamber, a crank shaft mounted in said crank case, pistons located having a bearin in said case and plate,

in eachof the cylinders and o atively conarms radiating rom said hub and discon- 110 nected with th'e crank sha an impetus nected at their outer ends and comprising wheel secured to the crank shaft and with cylinders opening for their f'ull dimensions its emphery surrounding and inclosing the out of said iii-take chamber, .pistons located cndls7 of the cylinders and having buckets on in said cylinders and operatively connected 5o "its interior, said wheel being closed entirely -with the crank shaft, an impetus wheel hav- 116 f about its periphery and an exhaust head aring its rifphery surroundin and inclosing ranged t deliver the exhaust from the the en o the cylinders an with buckets cylinders against said buckets. on its interior, andl exhaust heads secured 2. An en gine including a hollow crank to the ends of the cylinders to deliver excase providing an intake chamber, cylinders haust against said buckets. 120 radiating from said crank case and discon- 6. An en gine including a hollow crank nected at their outer ends, a shaft rotatably case providing an intake chamber, cylinders Y mounted in said crank case, pistons located radiating from said case and disconnected in each of the cylinders and operatively conat their outer ends, a crank shaft rotatably nected in the crank shaft, an impetus wheel mountedin the crank case, i ons locatedin H25 secured to the crank shaft and with its pethe cylinders and operative yonnected, with ri hery surrounding1 and inclosing the ends the crank shaft an imetus w eel scopi-ed to4 o; the cylinders an havin buckets'on its the crank shaft and aving its periphery interior and an exhaust eadextending surrounding and inclosin t endsof the across the outer ends of the cylinders an cylinders and with buckee o its interior, 130

exhaust heads at the ends of the cylinders a shoulder located on each stem and on the having openings extending at right angles opposite side of the exhaust chamber from to the axes of the cylinders, said openings the valve, a valve lever extending through 10 each constituting an exhaust chamber, a an opening in eaehfexhaust head and in en- 5 4valve stern extended across the exhaust'l gagement with said shoulder, and means for chamber of each exhaust head, a valve looperating each lever. cated on one side of each exhaust chamber, WILBUR L. SHEPARD. 

